Abstract:
A composition and method of making such a composition that has application in the hydroprocessing of hydrocarbon feedstocks. The method comprises selecting an organic additive by the use of a correlation model for predicting catalytic activity as a function of a physical property that is associated with the organic additive and incorporating the organic additive into a support material to provide the additive impregnated composition.
Abstract:
Biomass compaction during hydrothermal digestion of cellulosic biomass solids may become problematic, particularly as the vertical height of a cellulosic biomass charge increases. Compaction may be decreased in a horizontally configured hydrothermal digestion unit. Methods for digesting cellulosic biomass solids may comprise: providing a hydrothermal digestion unit having a length or a width greater than its height and containing a fluid phase digestion medium and a slurry catalyst capable of activating molecular hydrogen; introducing cellulosic biomass solids to the hydrothermal digestion unit; distributing the cellulosic biomass solids laterally within the hydrothermal digestion unit; after or while the cellulosic biomass solids are being distributed, supplying an upwardly directed flow of molecular hydrogen through the cellulosic biomass solids and the fluid phase digestion medium; and heating the cellulosic biomass solids in the presence of the slurry catalyst and the molecular hydrogen, thereby forming an alcoholic component derived from the cellulosic biomass solids.
Abstract:
A process for converting a biomass material comprising a) pyrolyzing a biomass material to produce a biomass-derived pyrolysis product; b) providing a petroleum-derived hydrocarbon composition having a C7-asphaltenes content of equal to or more than 0.2 wt %, based on the total weight of the petroleum-derived hydrocarbon composition, which petroleum-derived hydrocarbon composition has a total acid number of equal to or more than 0.5 mg KOH/g and/or a density at 15.5° C. of equal to or more than 0.8 grams/ml and/or a viscosity at 37.8° C. of equal to or more than 500 centiStokes (cSt); c) mixing at least part of the biomass-derived pyrolysis product and at least part of the petroleum-derived hydrocarbon composition to produce a hydrocarbon-containing mixture; and d) dewatering the hydrocarbon-containing mixture to produce a dewatered hydrocarbon-containing mixture.
Abstract:
A method of making a composite gas separation module by providing a porous support material having deposited thereon a metal membrane layer, by imposing upon the surface of the metal membrane layer certain surface characteristics including an abrasion pattern and a relatively high surface roughness that provides for surface activation that enhances the placement thereon of a subsequent metal membrane layer without the use of a chemical activating solution. The composite gas separation module is useful in the separation of hydrogen from hydrogen-containing gas streams.
Abstract:
Process and reactor for the production of synthesis gas by partial combustion of a hydrocarbon feed. A burner is used with a plurality of coaxial burner channels, wherein at least one channel supplies a flow of a non-gaseous hydrocarbon feed, at least one other channel supplies a flow containing a gaseous hydrocarbon feed and at least one further channel supplies a non-hydrocarbon moderator gas.
Abstract:
An insulated conductor heater may include an electrical conductor that produces heat when an electrical current is provided to the electrical conductor. An electrical insulator at least partially surrounds the electrical conductor. The electrical insulator comprises a resistivity that remains substantially constant, or increases, over time when the electrical conductor produces heat. An outer electrical conductor at least partially surrounds the electrical insulator.
Abstract:
A process for the production of an olefin oxide, which process comprises reacting a feed comprising an olefin and oxygen in a reactor tube in the presence of a silver-containing catalyst, wherein the presence of water in the catalyst bed is controlled such that the ratio of the partial pressure of water (PPH2O) divided by the vapor pressure of water (VPH2O) is less than 0.006, preferably less than 0.004.
Abstract:
A process for the fluid catalytic cracking of oxygenated hydrocarbon compounds from biological origin. The process comprises (a) contacting a feed comprising the oxygenated hydrocarbon compounds with a fluid catalytic cracking catalyst at elevated temperature to produce a cracked products stream, the feed comprising an amount of sulphur; (b) separating catalyst from the cracked products stream; (c) separating a light fraction from the cracked products stream; and (d) removing hydrogen sulphide from the light fraction by means of an amine treating process. The fluid catalytic cracking process involves the presence or use of water and/or steam and comprises a working-up process of the cracked products stream. In the working-up process, one or more chemical additives for reducing or hindering the formation of foam in amine liquids selected from defoamers and demulsifiers are added to the amine solvent in one or more amine treaters.
Abstract:
Digestion of cellulosic biomass solids can be enhanced in the presence of a phenolic solvent. Methods for digesting cellulosic biomass solids can comprise providing cellulosic biomass solids in a digestion medium comprising water and an organic solvent; heating the cellulosic biomass solids and the digestion medium in a digestion unit in the presence of molecular hydrogen and a slurry catalyst capable of activating molecular hydrogen, thereby forming an alcoholic component and liberating lignin, the lignin forming a phenolics liquid phase partitioned from the digestion medium and at least a portion of the slurry catalyst accumulating in the phenolics liquid phase; removing at least a portion of the phenolics liquid phase and accumulated slurry catalyst from the digestion unit; converting at least a portion of the phenolics liquid phase into a phenolic solvent; and returning at least a portion of the phenolic solvent and the slurry catalyst to the digestion unit.
Abstract:
A lubricating oil composition comprising: (a) a base oil composition comprising Fischer-Tropsch derived base oil; and (b) an organic molybdenum compound; (c) 30 wt % or less solvency booster; (d) antioxidant selected from aminic antioxidants, phenolic antioxidants, and mixtures thereof; (e) detergent comprising alkaline earth metal salicylate. The lubricating oil composition of the present invention provides improved anti-wear properties, as well as improved oxidation and improved piston cleanliness properties.